The actress and activist, who came out wearing a bright red-orange hoodie and sneakers, explained that she doesn’t like suits because they “make people uncomfortable.” McGowan stated, “I think, psychologically, they make people insane. Your arms are T-rexed.”

The conversation eventually turned to Harvey Weinstein; Colbert said to McGowan, “Here’s the thing about you. Six months ago, before you and other people had the courage and bravery to come out and talk about Harvey Weinstein. …” However, McGowan interrupted him to say: “Mine was a year ago. I was the architect.”

Colbert then asked McGowan whether she ever questioned her own sanity when she discovered she was under surveillance by Mossad agents hired by Weinstein. This caused McGowan to go on a full rant, saying, “I just got back from India, and everyone is so colorful, and I came here and saw all these khaki pants and T-rex things. And I said, ‘What is going on?’ I think we can do better, societally. I think we can be looser, 10%, have more fun, be better, see more colors, run. Like, what are we doing? It’s not working out so well here. Am I wrong? We’re like, there’s a bus on fire with a madman, and a blindfold, and everybody is still talking about, like, as if it’s nice. It’s not nice. It’s f***ing weird, right? Whoa! What? Shake it up. Otherwise, we’re all maybe going to die sooner than we think. And that’s what I think.”

Viewers quickly took to Twitter to express their thoughts about her eccentric behavior, tweeting:

Rose McGowan is giving the weirdest interview on The Late Show. I’m so uncomfortable

However, there was at least one person who thought the interview was totally normal — great, in fact. McGowan followed up her interview by posting on Instagram, “Such a delightful mind. [R]est easy, all. Colbert is as he seems, he is real. You can trust him.”

Actually, Colbert barely got a word in during the interview and, by the end, he seemed to just accept it.